Spring clamp



FIG. 1 is a perspective view of the spring clamp of the invention;

FIG. 2 is a side elevational view of the spring clamp, the opposite side elevational view being a mirror image thereof;

FIG. 3 is a top plan view of the spring clamp;

FIG. 4 is a bottom view of the spring clamp;

FIG. 5 is a front view of the spring clamp; and,

FIG. 6 is a rear view of the spring clamp. 

The ornamental design for a spring clamp, as shown. 